<template>
    <div>
     <!-- 面包线导航区域 -->
     <el-breadcrumb separator-class="el-icon-arrow-right">
     <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
     <el-breadcrumb-item>用户管理</el-breadcrumb-item>
     <el-breadcrumb-item>用户列表</el-breadcrumb-item>
     </el-breadcrumb>

     <!-- 卡片视图区域 -->
     <el-card >
      <!-- 搜索与添加区域 -->

     <el-row :gutter="20">
         <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
          <el-button slot="append" icon="el-icon-search" @click="getUserList" ></el-button>
         </el-input>
     </el-col>
         <el-col :span="4">
             <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
         </el-col>
     </el-row>

     <!-- 用户列表区域 -->
     <el-table :data="userlist" border stripe>
         <el-table-column type="index"></el-table-column>
         <el-table-column label="姓名" prop="username">
         </el-table-column>
         <el-table-column label="邮箱" prop="email">
         </el-table-column>
         <el-table-column label="电话" prop="mobile">
         </el-table-column>
         <el-table-column label="角色" prop="role_name">
         </el-table-column>
         <el-table-column label="状态">
            <template slot-scope="scope">
                <el-switch v-model="scope.row.mg_state" @change="userStatusChange(scope.row)">
                </el-switch>
            </template>
         </el-table-column>
         <el-table-column label="操作" width="180px">
             <template slot-scope="scope">
             <!-- 修改按钮 -->
             <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDilog(scope.row.id)"></el-button>
             <!-- 删除按钮 -->
             <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
             <!-- 分配角色按钮 -->
              <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
            <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
             </el-tooltip>
             </template>

         </el-table-column>
     </el-table>

    <!-- 分页区域 -->
      <el-pagination
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      :current-page="queryInfo.pagenum"
      :page-sizes="[1, 2, 5, 10]"
      :page-size="queryInfo.pagesize"
      layout="total, sizes, prev, pager, next, jumper"
      :total="total">
    </el-pagination>
     </el-card>
     <!-- 添加用户的对话框 -->
     <el-dialog
     title="添加用户" :visible.sync="addDialogVisible" width="50%" @close="addDialogClosed">
     <!-- 内容主题区域 -->
         <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
         <el-form-item label="用户名" prop="username">
            <el-input v-model="addForm.username"></el-input>
         </el-form-item>
         <el-form-item label="密码" prop="password">
            <el-input v-model="addForm.password"></el-input>
         </el-form-item>
         <el-form-item label="邮箱" prop="email">
            <el-input v-model="addForm.email"></el-input>
         </el-form-item>
         <el-form-item label="手机" prop="mobile">
            <el-input v-model="addForm.mobile"></el-input>
         </el-form-item>
         </el-form>
         <!-- 底部区域 -->
     <span slot="footer" class="dialog-footer">
     <el-button @click="addDialogVisible = false">取 消</el-button>
     <el-button type="primary" @click="addUser">确 定</el-button>
  </span>
</el-dialog>

     <!-- 修改用户对话框 -->
     <el-dialog
     title="修改" @close="editDialogClose"
     :visible.sync="editDialogVisible" width="50%">

      <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
     <el-form-item label="用户名">
      <el-input v-model="editForm.username" disabled></el-input>
     </el-form-item>

     <el-form-item label="邮箱" prop="email">
      <el-input v-model="editForm.email" ></el-input>
     </el-form-item>

     <el-form-item label="手机号" prop="mobile">
      <el-input v-model="editForm.mobile" ></el-input>
     </el-form-item>
      </el-form>

    <span slot="footer" class="dialog-footer">
    <el-button @click="editDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="editUserInfo" >确 定</el-button>
    </span>
    </el-dialog>

      <!-- 分配角色对话框 -->
      <el-dialog
   title="分配角色"
   :visible.sync="setRoleDialogVisible"
    width="50%" @close="setRoleDialogClose">
     <div>
      <p>当前的用户：{{userInfo.username}}</p>
      <p>当前的角色:{{userInfo.role_name}}</p>
      <p>
        分配新角色:
      <el-select v-model="selectRoleId" placeholder="请选择">
      <el-option
      v-for="item in rolesList"
      :key="item.id"
      :label="item.roleName"
      :value="item.id">
      </el-option>
      </el-select>
      </p>
    </div>
    <span slot="footer" class="dialog-footer">
    <el-button @click="setRoleDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
  </span>
</el-dialog>

     </div>
</template>

<script>
export default {
  data() {
    //   验证邮箱的规则
    var checkEmail = (rule, value, cb) => {
      // 验证邮箱的正则表达式
      const regEmail = /^([a-zA-Z0-9])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
      if (regEmail.test(value)) {
      //   合法邮箱
        cb()
      }
      cb(new Error('请输入合法的邮箱'))
    }

    //  验证手机号的规则
    var checkMobile = (rule, value, cb) => {
      // 验证手机号的正则
      const regMoblie = /^(0|86|17951|)?(13[0-9]|15[0123456789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
      if (regMoblie.test(value)) {
        //   合法邮箱
        cb()
      }
      cb(new Error('请输入合法的手机号'))
    }
    return {
    // 获取用户列表的参数
      queryInfo: {
        query: '',
        // 当前的页数
        pagenum: 1,
        // 当前每页显示多少条数据
        pagesize: 2
      },
      userlist: [],
      total: 0,
      //   控制添加对话框的显示与隐藏
      addDialogVisible: false,
      //   添加用户的表单
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      //   添加表单验证规则
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名称', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }],
        email: [{ required: true, message: '请输入邮箱', trigger: 'blur' }, { validator: checkEmail, trigger: 'blur' }],
        mobile: [{ required: true, message: '请输入手机号', trigger: 'blur' }, { validator: checkMobile, trigger: 'blur' }]
      },
      editForm: {},
      //   控制修改用户的对话框的隐藏和显示
      editDialogVisible: false,
      // 表单的验证规则
      editFormRules: {
        username: [],
        email: [{ required: true, message: '请输入邮箱', trigger: 'blur' }, { validator: checkEmail, trigger: 'blur' }],
        mobile: [{ required: true, message: '请输入手机号', trigger: 'blur' }, { validator: checkMobile, trigger: 'blur' }]
      },
      // 控制角色分配的对话框的显示与隐藏
      setRoleDialogVisible: false,
      // 需要被分配角色的用户信息
      userInfo: {},
      // 所有角色的数据列表
      rolesList: [],
      // 选择的角色显示
      selectRoleId: ''
    }
  },
  created() {
    this.getUserList()
  },
  methods: {
    async getUserList() {
      const { data: res } = await this.$http.get('users', { params: this.queryInfo })
      if (res.meta.status !== 200) return this.$message.error('获取用户列表失败！')
      console.log(res)
      this.userlist = res.data.users
      this.total = res.data.total
    },
    // 监听pagesize改变的事件
    handleSizeChange(newSize) {
    //   console.log(newSize)
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听 页码值 改变的事件
    handleCurrentChange(newPage) {
    //   console.log(newPage)
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 监听Switch状态的改变
    async userStatusChange(userinfo) {
      console.log(userinfo)
      const { data: res } = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error('更新用户状态失败！')
      }
      this.$message.success('更新用户状态成功')
    },
    // 监听对话框的关闭事件
    addDialogClosed() {
      this.$refs.addFormRef.resetFields()
    },
    // 点击按钮，添加用户
    addUser() {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return
        // 通过，发起添加请求
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 201) {
          this.$message.error('添加用户失败！')
        }
        this.$message.success('添加用户成功！')
        // 隐藏对和框
        this.addDialogVisible = false
        this.getUserList()
      })
    },
    // 展示编辑用户的对话框
    async showEditDilog(id) {
      const { data: res } = await this.$http.get('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('查询用户失败！')
      }

      this.editForm = res.data
      this.editDialogVisible = true
    },
    // 监听修改对话框的关闭事件
    editDialogClose() {
      this.$refs.editFormRef.resetFields()
    },
    //  修改用户信息，并提交
    editUserInfo() {
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return
        // 发起信息提交请求
        const { data: res } = await this.$http.put('users/' + this.editForm.id, { email: this.editForm.email, mobile: this.editForm.mobile })
        if (res.meta.status !== 200) {
          return this.$message.error('更新用户信息失败！')
        }
        this.$message.success('更新用户信息成功！')
        this.editDialogVisible = true
        this.getUserList()
      })
    },
    // 删除
    async removeUserById(id) {
      // 弹框，询问是否删除
      const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      // 如果用户确认了删除，返回值是字符串 confirm
      // 如果用户取消了删除，返回值是字符串 cancel
      if (confirmResult !== 'confirm') {
        return this.$message.info('取消删除！')
      }
      this.$message.info('确认了删除')

      // 删除操作
      const { data: res } = await this.$http.delete('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('删除用户失败！')
      }
      this.$message.success('删除成功')
      this.getUserList()
    },
    // 展示分配角色的对话框
    async setRole(userInfo) {
      this.userInfo = userInfo
      // 在展示之前，获取所有的角色列表
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        return this.$message.error('请求角色列表失败')
      }
      this.rolesList = res.data
      this.setRoleDialogVisible = true
    },
    //  点击按钮，分配角色
    async saveRoleInfo() {
      if (!this.selectRoleId) {
        return this.$message.error('请选择要分配的角色')
      }
      const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, { rid: this.selectRoleId })
      if (res.meta.status !== 200) {
        return this.$message.error('更新角色失败！')
      }
      this.$message.success('更新角色成功')
      this.getUserList()
      this.setRoleDialogVisible = false
    },
    // 监听分配角色对话框的关闭
    setRoleDialogClose() {
      this.selectRoleId = ''
      this.userInfo = {}
    }


  }
}
</script>

<style lang="less" scoped>

</style>
